<s>
An	O
event	O
in	O
the	O
Unified	B-Language
Modeling	I-Language
Language	I-Language
(	O
UML	B-Language
)	O
is	O
a	O
notable	O
occurrence	O
at	O
a	O
particular	O
point	O
in	O
time	O
.	O
</s>
<s>
Events	O
can	O
,	O
but	O
do	O
not	O
necessarily	O
,	O
cause	O
state	B-Application
transitions	O
from	O
one	O
state	B-Application
to	O
another	O
in	O
state	B-Architecture
machines	I-Architecture
represented	O
by	O
state	B-Application
machine	I-Application
diagrams	I-Application
.	O
</s>
